Home / 1,587,422.78-2,190,684.22-862,312

Finding the Fourth Proportional to 1,587,422.78, 2,190,684.22 and 862,312

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Solution

The fourth proportional to 1,587,422.78, 2,190,684.22 and 862,312 is: 1,190,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,422.78 : 2,190,684.22 = 862,312 : x
  2. Step 2: Convert to fraction form
    1,587,422.78/2,190,684.22 = 862,312/x
  3. Step 3: Cross multiply
    1,587,422.78x = 2,190,684.22 × 862,312
  4. Step 4: Simplify right side
    1,587,422.78x = 1,889,053,291,116.64
  5. Step 5: Solve for x
    x = 1,889,053,291,116.64/1,587,422.78
  6. Step 6: Final answer
    x = 1,190,012.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.